From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of lubricants that successfully passed a mechanical running test for a hypoid geared axle.
| Identifier | ExFiles\Box 136\5\ scan0258 | |
| Date | 18th March 1930 | |
| COPY. X2066. March 18, 1930. The following lubricants have successfully passed the mechanical running test of a hypoid geared axle without detriment to either gears or bearings. 1. Whitmore's "Naught" manufactured by the Whitmore Manufacturing Company, Cleveland, Ohio. - A lead soap oil. 2. "Gearo" manufactured by the American Oil Corporation, Jackson, Michigan. - A lead soap oil. 3. "Duplex Hypoid Compound type C" manufactured by the Enterprise Oil Company, Buffalo, New York - A lead soap oil. 4. "Elco #28" manufactured by the Elco Grease and Oil Company, Cleveland, Ohio. - A lead soap oil. 5. "Bustrux Special" manufactured by the Warren Refining & Chemical Company, Cleveland, Ohio. - A mineral oil. 6. "Penola Leaded Compound" manufactured by the Pennsylvania Lubricating Company, Pittsburgh, Pa{Mr Paterson} - A lead soap oil. 7. "Jesco Lead Soap Compound" manufactured by the Jesco Lubricant Company of North Kansas City, Mo. - A lead soap oil. 8. "Pennzoil Gear Compound" manufactured by the Pennzoil Company of, Oil City, Pa.{Mr Paterson} - A lead soap oil. 9. "Alomite Gear Lubricant" manufactured by the Alomite Company. - A lead soap oil. The usual specifications of lubricants such as pour test, viscosity etc. were not investigated by us as these properties are settled by the axlemanufacturer. If any change is made in the lubricants in order to change the pour test, a recheck should be made on the lubricant. It is, of course, essential in any gear drive that both gears and bearings be of ample capacity and that the lubricant be free from any lapping agents. TEST SPECIFICATIONS. 1. Drive Shaft - 1200 R.P.M. 2. Gear Data - 13x61 hypoid - 12" gear, 1 1/4" face, pinion 2" below gear center line. Contd:-- | ||